Data Transparency
Coverage statistics for 141,785 physical sites with 162,391 voltage-level connection points across GB distribution and transmission networks.
Network Coverage
141,785
sites · 162,391 busbars
With Coordinates
98.2%
With Gen Headroom
67.5%
With Fault Levels
6.4%
Coverage Metrics
Demand Headroom
90.4%
Switchgear Ratings
4.9%
Constraint Data
3.5%
RAG Status
2%
Distribution Network Operators
| DNO | Busbars | Coords | Gen Headroom | Demand Headroom | Fault Levels | Last Updated |
|---|---|---|---|---|---|---|
| UKPN | 74,832 | 99.4% | 98.3% | 98.7% | 2.7% | 6 Jul 2026 |
| ENW | 35,449 | 100.0% | 93.6% | 94.2% | 0.0% | 6 Jul 2026 |
| NPG | 31,405 | 97.6% | 2.5% | 88.3% | 4.1% | 6 Jul 2026 |
| NGED | 11,838 | 94.3% | 4.9% | 77.7% | 28.5% | 6 Jul 2026 |
| SSEN | 5,934 | 95.9% | 15.6% | 15.6% | 17.4% | 6 Jul 2026 |
| SPEN | 2,315 | 62.7% | 22.4% | 70.3% | 98.7% | 6 Jul 2026 |
Transmission Operators
| Operator | Busbars | Coords | Gen Headroom | Fault Levels | Last Updated |
|---|---|---|---|---|---|
| National Grid ET | 359 | 98.6% | 0.0% | 45.7% | 6 Jul 2026 |
| SSEN Transmission | 163 | 100.0% | 0.0% | 77.9% | 6 Jul 2026 |
| SP Transmission | 105 | 100.0% | 0.0% | 35.2% | 6 Jul 2026 |
Coordinate Sources
From DNO data
299,293 busbars Matched from heatmap
2,599 busbars Inherited from parent
1,313 busbars Demand Headroom Sources
native:npg-site-utilisation
26,958 busbars native:spen-historic-utilisation
1,616 busbars native:ukpn-ltds-table-3b
968 busbars SSEN Headroom Dashboard
852 busbars native:cim-npg; native:npg-ltds-appendix-5
494 busbars NGED Network Opportunity Map
485 busbars NGED LTDS Table 3
419 busbars NGED Net Opp Map → LTDS
273 busbars native:ukpn-dfes-2026-ht
242 busbars ENW DFES LV (modelled)
184 busbars NPG NDP forecast snapshot
133 busbars native:cim-nged
49 busbars generation-availability-and-network-capacity
42 busbars native:cim-npg
40 busbars NPG Heatmap Data
38 busbars ENW DFES LV (monitored)
30 busbars ENW Primary Heatmap
19 busbars native:spen-ltds-app3
10 busbars native:cim-ssen
9 busbars Generation Headroom Sources
native:ukpn-dfes-2026-ht
854 busbars SSEN Headroom Dashboard
852 busbars SPEN NSHR forecast snapshot
516 busbars native:cim-npg; native:npg-ltds-appendix-5
494 busbars NGED LTDS Table 3
445 busbars NGED Net Opp Map → LTDS
275 busbars NPG NDP forecast snapshot
141 busbars generation-availability-and-network-capacity
41 busbars native:cim-npg
40 busbars NPG Heatmap Data
38 busbars ENW Primary Heatmap
19 busbars native:cim-ssen
10 busbars NGED Network Opportunity Map
9 busbars native:cim-nged
7 busbars Data Attribution
All data is sourced from official DNO open data portals under their respective licenses. We aggregate and normalize this data but do not modify the underlying values.
NGED
connecteddata.nationalgrid.co.uk
OGL v3.0
UKPN
ukpowernetworks.opendatasoft.com
CC BY 4.0
NPG
northernpowergrid.opendatasoft.com
OGL-style
SPEN
spenergynetworks.opendatasoft.com
CC BY 4.0
ENW
electricitynorthwest.opendatasoft.com
CC BY 4.0
SSEN
data.ssen.co.uk
CC BY 4.0
Statistics generated: 8 Jul 2026, 07:10Live query